Qemu
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.
Weaknesses (CWE)
- CWE-835 — Loop with Unreachable Exit Condition
References
- http://rhn.redhat.com/errata/RHSA-2014-0420.html
- http://rhn.redhat.com/errata/RHSA-2014-0421.html
- http://www.openwall.com/lists/oss-security/2014/03/26/8
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a703ba1a6
- https://bugzilla.redhat.com/show_bug.cgi?id=1078212
- https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2014-0207
- GCVE · GCVE-0-2014-0148
CERT-FR advisories
- CERTFR-2014-AVI-452 — Multiples vulnérabilités dans Qemu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*< 2.0.0cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:6.5:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_openstack_platform:5:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_server_tus:6.5:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Qemu | affected before 2.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |